git.gag.com Git - fw/altos/blob - AltosDeviceDialog.java

   1 /*
   2  * Copyright © 2010 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package altosui;
  19
  20 import java.lang.*;
  21 import java.util.*;
  22 import javax.swing.*;
  23 import java.awt.*;
  24 import java.awt.event.*;
  25 import libaltosJNI.*;
  26
  27 public class AltosDeviceDialog extends AltosDialog implements ActionListener {
  28
  29         private AltosDevice     value;
  30         private JList           list;
  31         private JButton         cancel_button;
  32         private JButton         select_button;
  33         private JButton         manage_bluetooth_button;
  34         private Frame           frame;
  35         private int             product;
  36
  37         private AltosDevice getValue() {
  38                 return value;
  39         }
  40
  41         private AltosDevice[] devices() {
  42                 java.util.List<AltosDevice>     usb_devices = AltosUSBDevice.list(product);
  43                 int                             num_devices = usb_devices.size();
  44                 java.util.List<AltosDevice>     bt_devices = Altos.bt_known.list(product);
  45                 num_devices += bt_devices.size();
  46                 AltosDevice[]                   devices = new AltosDevice[num_devices];
  47
  48                 for (int i = 0; i < usb_devices.size(); i++)
  49                         devices[i] = usb_devices.get(i);
  50                 int off = usb_devices.size();
  51                 for (int j = 0; j < bt_devices.size(); j++)
  52                         devices[off + j] = bt_devices.get(j);
  53                 return devices;
  54         }
  55
  56         private void update_devices() {
  57                 AltosDevice[] devices = devices();
  58                 list.setListData(devices);
  59                 select_button.setEnabled(devices.length > 0);
  60         }
  61
  62         private AltosDeviceDialog (Frame in_frame, Component location, int in_product) {
  63                 super(in_frame, "Device Selection", true);
  64
  65                 product = in_product;
  66                 frame = in_frame;
  67                 value = null;
  68
  69                 AltosDevice[]   devices = devices();
  70
  71                 cancel_button = new JButton("Cancel");
  72                 cancel_button.setActionCommand("cancel");
  73                 cancel_button.addActionListener(this);
  74
  75                 manage_bluetooth_button = new JButton("Manage Bluetooth");
  76                 manage_bluetooth_button.setActionCommand("manage");
  77                 manage_bluetooth_button.addActionListener(this);
  78
  79                 select_button = new JButton("Select");
  80                 select_button.setActionCommand("select");
  81                 select_button.addActionListener(this);
  82                 if (devices.length == 0)
  83                         select_button.setEnabled(false);
  84                 getRootPane().setDefaultButton(select_button);
  85
  86                 list = new JList(devices) {
  87                                 //Subclass JList to workaround bug 4832765, which can cause the
  88                                 //scroll pane to not let the user easily scroll up to the beginning
  89                                 //of the list.  An alternative would be to set the unitIncrement
  90                                 //of the JScrollBar to a fixed value. You wouldn't get the nice
  91                                 //aligned scrolling, but it should work.
  92                                 public int getScrollableUnitIncrement(Rectangle visibleRect,
  93                                                                       int orientation,
  94                                                                       int direction) {
  95                                         int row;
  96                                         if (orientation == SwingConstants.VERTICAL &&
  97                                             direction < 0 && (row = getFirstVisibleIndex()) != -1) {
  98                                                 Rectangle r = getCellBounds(row, row);
  99                                                 if ((r.y == visibleRect.y) && (row != 0))  {
 100                                                         Point loc = r.getLocation();
 101                                                         loc.y--;
 102                                                         int prevIndex = locationToIndex(loc);
 103                                                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
 104
 105                                                         if (prevR == null || prevR.y >= r.y) {
 106                                                                 return 0;
 107                                                         }
 108                                                         return prevR.height;
 109                                                 }
 110                                         }
 111                                         return super.getScrollableUnitIncrement(
 112                                                 visibleRect, orientation, direction);
 113                                 }
 114                         };
 115
 116                 list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 117                 list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
 118                 list.setVisibleRowCount(-1);
 119                 list.addMouseListener(new MouseAdapter() {
 120                                  public void mouseClicked(MouseEvent e) {
 121                                          if (e.getClickCount() == 2) {
 122                                                  select_button.doClick(); //emulate button click
 123                                          }
 124                                  }
 125                         });
 126                 JScrollPane listScroller = new JScrollPane(list);
 127                 listScroller.setPreferredSize(new Dimension(400, 80));
 128                 listScroller.setAlignmentX(LEFT_ALIGNMENT);
 129
 130                 //Create a container so that we can add a title around
 131                 //the scroll pane.  Can't add a title directly to the
 132                 //scroll pane because its background would be white.
 133                 //Lay out the label and scroll pane from top to bottom.
 134                 JPanel listPane = new JPanel();
 135                 listPane.setLayout(new BoxLayout(listPane, BoxLayout.PAGE_AXIS));
 136
 137                 JLabel label = new JLabel("Select Device");
 138                 label.setLabelFor(list);
 139                 listPane.add(label);
 140                 listPane.add(Box.createRigidArea(new Dimension(0,5)));
 141                 listPane.add(listScroller);
 142                 listPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
 143
 144                 //Lay out the buttons from left to right.
 145                 JPanel buttonPane = new JPanel();
 146                 buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.LINE_AXIS));
 147                 buttonPane.setBorder(BorderFactory.createEmptyBorder(0, 10, 10, 10));
 148                 buttonPane.add(Box.createHorizontalGlue());
 149                 buttonPane.add(cancel_button);
 150                 buttonPane.add(Box.createRigidArea(new Dimension(10, 0)));
 151                 buttonPane.add(manage_bluetooth_button);
 152                 buttonPane.add(Box.createRigidArea(new Dimension(10, 0)));
 153                 buttonPane.add(select_button);
 154
 155                 //Put everything together, using the content pane's BorderLayout.
 156                 Container contentPane = getContentPane();
 157                 contentPane.add(listPane, BorderLayout.CENTER);
 158                 contentPane.add(buttonPane, BorderLayout.PAGE_END);
 159
 160                 //Initialize values.
 161                 if (devices != null && devices.length != 0)
 162                         list.setSelectedValue(devices[0], true);
 163                 pack();
 164                 setLocationRelativeTo(location);
 165         }
 166
 167         //Handle clicks on the Set and Cancel buttons.
 168         public void actionPerformed(ActionEvent e) {
 169                 if ("select".equals(e.getActionCommand()))
 170                         value = (AltosDevice)(list.getSelectedValue());
 171                 if ("manage".equals(e.getActionCommand())) {
 172                         AltosBTManage.show(frame, Altos.bt_known);
 173                         update_devices();
 174                         return;
 175                 }
 176                 setVisible(false);
 177         }
 178
 179         public static AltosDevice show (Component frameComp, int product) {
 180
 181                 Frame                           frame = JOptionPane.getFrameForComponent(frameComp);
 182                 AltosDeviceDialog       dialog;
 183
 184                 dialog = new AltosDeviceDialog(frame, frameComp, product);
 185                 dialog.setVisible(true);
 186                 return dialog.getValue();
 187         }
 188 }